Hinge assembly for swinging doors



July 29 1952 v T. F. ANDERSON ET AL 2,604,654 I HINGE ASSEMBLY FOR SWINGING DOORS 5 Sheets-Sheet 1 Filed June 26, 1948 1m` 'mToRs THOMAS l? ANDERSON Y BY KENT W BENH/IM Mgmm A TTORNFKS July 29, 1952 T. F. ANDERSON ETAL HINGE ASSEMBLY FOR SWINGING DOORS Filed June 26, 1948 y mun 3 Sheets-Sheet 2 INVENToRs WOM/is /l/vDfRso/v By KENT MBE/WMM A TTORNEYS July 29 1952 T. F. ANDERSON ETAL 2,604,654

HINGE ASSEMBLY FOR SWINGING DORS 3 Sheets-Sheet 5 Filed June 26, 1948 INVENToRs 7710M/1s E ANQE/Yso/v BY KENT N BEA/HAM M; YQ/m A 7`7'0R1VFYS cles, servceiroomsand compartments wherelsanitation is important, iz'itgishi'ghly: desirable'. that Patented July 29, 1952 UNITED PAT ENT OFFICE :22,604,654 HINGEASSEMBLY FOR 'SWINGING DOORS 'lhomasRAndersom Chagrin `'Iialls,sai1d KentiW.

z. .aacorporation of Ohio f"f-Applicatinfiel-une26, 1948, Serial No. 35,338

(-Cl. -16f1 86) v1l; Claims.

1 This invention lrelates cito! hinges. assembly?L `for swinging doors:andrmore particularlyctolani im- .proved ,hinge.Yassemblyidesignedsto' be concealed within'the :door .structure andsyleti-operate to automaticallynswingtheli door to the'desired4 .open l or closed., position. l

. Gravity hinges as commonly-employedrembody v a roller; mounted Joni, a support.;attached...to L the door; and *designed nto roll over;4 any inclinedstrack xed: Ato thedoor,iframegitheldoonbeing-mounted to have vertical movement:to;takef..advantage of VgravityA force ;to i.goperateztheairdoor, To secure frproperzfgravity;action and;theerelationheeessary between. theizrollerxandf'the afinclinedoam .traclr, thesminmum; diameten-,oir-theilc'ase.. onV housing which encloses 'the.` workingzparts fof, the :hinge should. be: inf'the approxiinater order soi-two: inches Vorzrnore. :The enlarged `casingarequiresf. that; the

gravity-.hinge be mounted belowzzthe :bottom :edge a:notchedtcutout:inz'the YSince; the hingecasing is nished :soz-that' the :installation;.presents aisireasonably. attractive appearance. LSincezrvertical door-.f movementatmustibe; provided rfor; fgravitv hingesqas :presently:constructed; :cannot i be-fused non' doorsssized tot occupyathei entire :door: opening rasolened bylitheldoor frame.

. :In the design; ofztoilet. partitions, 'hospitalicubithe doors and Wall surfaces present smoothfand regular contours iso.: that; 'they.; may; :fbeezeasily cleanedxand :kept sanitary. ;J Gravity hingesheretoforeV ;employed;set .finzf exposedsposition below the loweredge"ofrthergdoorgor recessedfintovthe rear- 'edge .of theadoOr,fpresenttobjectionable exposed. surfaces andfxirregularitiesfwhich gather Ydirt and are difcultatokeep aciean. f

` closed: residence position or, open ,residence position, Without raising :on lowering. rnovement. of the door. "f-'Ihus this .improvedf.hingevassembly nds application .to.- numerous typs` and. sizes of doors, and can heus'edfinlocation'swhere raisfing and 1owringmovemntoi the doorrfasroccaf South: Euclid', 'Qhio,v assignors .to .The Sanymetal Products Co.,;In c.--,

cleveland, ohio,

sioned by gravity hingesfis riotdesirableorlpermissible.

door, the parts thereof do not require special ln'- V f. ishing uor vchrome.platingr` andare fullyiprotected s from`4 dirt and-.weather :.deteriorationl YJVIeansare provided by which the resider-1ce--aposition'I ofthe doornI may.. be accuratelyfadjustedmythe :simple manipulation. sofi aipartlthereof: iexposedfiat 'fthe .-loweredge oi the door." This improved :door hinge f assembly.- may besinountecl.L onanyrtype zor'shape tot: hinge bracket, permitting awwidelzllatitucletin the-'design oi:the.hingebiaclt tofh'arm'onize with i the* door. and doorJf-ramery architecture.

l Anf. object of!A this invention provide v1an L .improved- -hinge;.; assembly -i which overcom'es'lthe obj ectionable v`features -fof1gravity hinges-.agreem- 1 emonlyfused.

1. Anotiwl.Y object fof-this linvention is.l to provide an improved hinge assembly operative--to-automatieally-swing the!I door with Whichfit `is'` associatedeto anyl dsiredvresidenceposition; and con- J strueted to -permit=conce'alment .ofi the hinge-- as- -sembly withinnthe-normal" thickness fofthe Y door Another `object=ofl thisfinvention-is to Jprovide an improved nhingevassernbly operative toe swing f the door with Ywhich it isn associated to any "deysired 'residence' :position: Without icausinglowerv `'ing or raising-movement^of` the door.

Anothergobj ect of this-invention'1isito provide an' improvedA hinge assembly for swinging doors constructed' to, permit 'concealed' encasement "thereof withinthe'door body; whichgis operative to` urge. the doorto predetermined residence position without causing' raising orllowering movement of the door', 'which is, economical sto manuffacture andassemble, whichan begconvenietly and ,easily installed in the ,door,.,.and quickly. ad-

justed from. a [point exterior oi the? door.

tion will become apparentes .the

.eeeds Other objects 1 and.. advantages -of this. .invendisclosur'efpro- Although thecharacterlstic features of..the.-in

vent-,ion7 willlbe particularly pointed QUtAnf-the claims,appendedhereto the. invention. itself,.and

.i .themanner in which itmaylbercarriedoutFmay be betterlunderstood 1by referring tol ftheiollowing description taken in connection .-Withntheraccompanying. drawings forming.apartfhereof, in

l Which mountedfinl a`v` doorE-frameflbysmeans of the improved hinge assembly constructed in accordance with this invention.

Fig. 2 is a top plan View of the door and door frame as illustrated in Fig. 1, this view showing the door in various positions to indicate the operating characteristics of this improved hinge assembly.

Fig. 3 'is an enlarged elevational view of the improved hinge assembly showing the details thereof, parts of the door and the lower hinge bracket being shown in their associated relation to the hinge assembly.

Fig. 4 is an enlarged .vertical cross sectional view through the hinge assembly and a fragmentary part of the door and lower hinge bracket, as the same would appear when viewed along line 4-4 of Fig. 3.

Fig. 5 is an enlarged fragmentary cross sectional view of the door and hinge assembly, as viewed along the horizontal section indicated by f line 5--5 of Fig. 3; and

Fig. 6 is an enlarged fragmentary Ycross sectional view ofl the door and hinge assembly, as viewedalong the horizontal section indicated by line 6,-6 of Fig. 3. 1

Similar reference characters refer to similar parts throughout the several views of the drawings and speciiication. Y

The improved hinge assembly constructed in accordance with this invention may be associated with almost any type of door and door frame, including doors which occupy the full area of the `dooropening as defined by the door frame, as

well as doors which are variously Vspaced from the door sill and/or the door head frame. For purposes of illustration there is shown in Fig. 1, one form of door with whichthis improved hinge assembly may be associated. the door being snugly iitted between the jamb edge 4 of the front frame member 2 and the jamb edge 5 of the rear frame member 3.

rlhe dooris hingedly mounted upon an upper hinge bracket 6 and a lower hinge bracket 1 which may be of any desired construction. As illustrated in Fig. 1, each hinge bracket may comprise a horizontal arm 3 having rearwardly projecting spaced wings 3. Bolts II) extending through the wings 9 and through the rear frame member 3 v.may be provided to rmly secure vthe hinge brackets in :lixedl position. It will be appreciated that the hinge brackets may be of any desired shape or design to provide a support for the hinge pintles, and may be variously secured or attached to the rear frame member.

The doorI may be constructed in any desired .shape and size of metal, wood or other material,

and mayV vary from approximately 1 inch in thickness toI two or moreinches in thickness. As

'shown in the drawings for purposes of illustration, the door I may comprise a pair of metal side wall forming panels |I arranged in spaced relaconstruction.

'Ihe rear corners of the door may be reinforced and strengthened by a bottom corner bracket 2D and a top corner bracket 2| secured to the door structure, the brackets presenting contours which interfit and harmonize with the adjacent door edging sections. Each corner bracket is sturdily constructed and may be formed as a metal casting, presenting a horizontal leg 22 and a vertical leg 23. The horizontal leg 22 may be slightly inset, as shown more particularly in Figs. 1 and 3, so that the horizontal armvof the adjacent hinge bracket will intert therewith, maintaining the overall height of the door substantially uniform throughout. To attain line symmetry, the horizontal arm 8 of the top hinge bracket 6 may extend in substantially the same plane as the top edging section I3 of the door, and the horizontal arm 8 of the lower hinge bracket 'I may extend in substantially the same plane as the bottom edging section I5 of the door. A neat and symmetrical door construction and door mounting is thus provided in which the projecting horizontal arms 8 of the hinge brackets are contoured within the door dimensions to present smooth flowing lines of attractive appearance.

The upper end of the door I may be pivotally secured to the upper hinge bracket 6 by means of a hinge pintle 24 which extends through the horizontal arm 8 of the upper hinge bracket 6 and suitably journaled in the horizontal leg 22 of the upper corner bracket 2| of the door. A simple hinge pintle 24 can be used for this purpose since the lower edge of the door is pivotally supported upon` the improved hinge assembly 30 which will now be described.

As shown more particularly in Figs. 3, 4, 5 and 6, the hinge assembly 30 comprises an elongated pintle rod 3 I .whose lower end extends through the horizontal arm 8 of the lower hinge bracket 1. The fixed bearing section 33 of a thrust bearing 32 embraces the lower end of the pintle rod 3| and is secured thereto as by a suitable key pin 33. The fixed bearing section 33 freely extends through a suitable opening 22' in the horizontal leg 22 of the lower corner bracket 20. The projecting end of the pintle rod 3I is made to receive a-nut 34. When the nut 34 is tightened, the arm 8 of the lower hinge bracket 'I is clamped between the nut 34 and the fixed bearing section 33 in a manner to secure the pintle rod 3| in rigidly xed position to the bracket arm 8. The exposed end of the pintle rod 3| is provided with a slot 35 to which 'a screw driver `may be applied to permit orientation ofthe pintle rod 3 I, when the nut 34 is loosened, for a purpose which will presently appear.

The thrust bearing 32 also includes a rotatable bearing section 36 which is housed between the side wall panels II of the door, the rotatable section 36 having a centralbore 31 through which the pintle rod 3| freely extends'. The bearing section 36 is rotatably supported upon the iixed bearing section 33, as by suitable ball bearings 38, so that the bearing section 36'may freely rotate substantially without friction on the fixed bearing section 33 of the composite thrust bearing 32. The rotatable bearing section 36 is firmly secured.

as by'welding 39, to the horizontal leg 22 of the lower corner bracket 20. Thus it will be appreciated that the rotatable'bearing section 36, fixed to thehorizontal leg 22 of doorbracket 20, rotates with the swinging/movement of the door about the fixedjpintle rod 3|, the bearing section 33 beingffixedly held to the arm 8 of the lower hinge bracket 'I by the tightened nut 34.

AV cam track member 40 is fixed to the pintle rod 3| as by a key pin 4I, the cam track member 4IJ' being positioned directly above the rotatable bearing section 36 of the thrust bearing 32. The

5 cam track` member! 40 maybe madejinthefo'rm of a tubular metal cylinder through which the'- pintle rod 3| extends, and has a diameter whichmay be somewhat less thanthe distance between the side wall panels of the door. The upper face of the cam track member 4^`presents a cam track 42 having a depressed valley point 42a and inclined riser faces 42h extending therefrom. Each ofthe inclined riser faces 42h terminates ina raised crown point 42o which over-'rolls into a sunken notch 42d.

A cam rollerv 45 is provided, designed to roll over the cam track 42 of the cam member 4U. y The cam roller 45 has a mounting bymeans of which a substantial swinging thrust `willbe exerted n the door to move it' from open to closed positionw-hen the roller l45 travels -over the` inclined track face y42h ofthe cam track 42. The mounting means for the cam roller 45 comprises a'relatively heavy metal block 45 having a, bore41 through" which the pintle rod 3| extends in a manner to permit free sliding and swinging movement' or the block 46 on the pintle rod 3|. The 'roller mounting block 46 presents an elongated extension 4|!V which projects horizontally between the 'sidewall panels of the door for a distance of two or more inches from the pintle rod 3|. The extension 48 may be provided with laterally flared wing sections 49, as vshown more particularly in Figs. 3 and 5, which are designed to bear against the inside faces of the adjacent side wall panels of the door. Thus it will be appreciated that swinging movement of the door will cause the roller mounting block to pivot on the pintle rod 3|.

A bearing lug U, which maybe cast as aninn tegral part of the block 46, extends therefrom in spaced relationto the vpintle rod.' 3|. The bearing lug 50 supports a bearing sleeve 5| within which a stub shaft 52` may freely rotate. The cam roller 45 is mounted on onev end of thel stub shaft 52, the other end ofthe stub shaft 5.2"having a suitable bearing nut 53 `whereby the stub shaft 52 is held in assembled position in the bearing lug 56. Since the roller supporting. block 46 possesses considerable weight,y the cam roller 45 willbe maintained at all times in rolling engageinentA with the cam track 42, and the-,cam roller45 Will freely roll over the, cam track 42V with the swinging movement of the door.

When the door is in closediresidence position a, as indicated in Fig. 2, the cam roller 415 willbe at rest at the -vall'ey point 42a ofthe camA track. When the door is forcibly swung, through distance b to the open positionv as indicated'at c in Fig. 2, the cam roller 45' will havel travelled up one of( the inclines 42h of the cam track to the crown 420 of the cam track as indicated in Fig.. 3. The door will not remain atrest in this position when the door is released, but if swung open a further increment, the cam roller 45 will roll into the adjacent open residence depression 42d of the cam track as shown in Fig. 4, at which point the door will have open stability in thepositiond shown in Fig. 2.

It will be noted that the roller mounting block 46' provides av radius arm whereby substantial leverage force may be exerted' on the. door, even though the track radius of the cam track 42 is relatively small. This radius arm action is augmented by the, substantial Weight of the. block 46j which forms the radius arm, and is further substantially augmented 'by the" provision of4 a heavy coiled compression spring 55j'which embraces the upper portion of the pintlejrod 3|'. The lower endv of the spring` 55 may rest upon accade?.

a washer 56 which in turnrests upon a bearing washer 5'! which may be of the self-lubricating type, or which-may carry a set of ball bearings. A `rotatable washer 5B seats against the upper Vvend of the radius bloc-k 46 and rotates therewith, the rotatable washer 58V providing a support for the bearing washer 5l.

I The compression spring 55 may be capped by a heavy cap Washer 59 which telescopes over the upper-end of the pintle rod 3| and seats against the upper end of the compression spring 55. The upper end of the pintlel rod 3| is provided with a plurality of spaced pinA holes 6U extending diametrically therethrough, each hole` being designed tofselectively receive an abutment pin 6|. The compression spring 55- may beplaced under any desired degree of compression'by adjusting the pin-locked position of the cap-washer 59. Y

It will be appreciated that the compression spring 55 may be adjusted to exert substantial downward pressure against the radius block 4B, thereby applying a corresponding load on the freely rotatable cam roller 45. The weight of this load is adjustedl so that the cam roller 45 will positively roll down the inclined section 42h of the cam track and exert a suicient swinging force on the radius block 46 to insureV positive swinging movement of the door. By a proper proportioning of the weight and size of the parts, and the load pressure exerted by the coil spring 55, a door of very substantial weight can be swung to closed position by the automatic action of this improved hinge assembly. Forcible swinging movement of the door toward open position drives the rol-ler up the incline cam track section 42h, thereby further compressing the compression spring 55 to a point where the door will automatically swing te closed residence position or open residence position as desired.

Meansv are provided to adjust the hinge mech- 'anismto maintain the door in residence at any desired open or' closed position. Assuming, for example, that it is desired to maintain the door at closed residence position a, as shown in Fig. 2, the'pintle 1od`3l is oriented to place the valley 'point 42a of the cam track in position where the cam roller 45 will reside at the valley point 42a when the door is in the selected closed position. This adjustment can be eifected externally of the door, by simply loosening the nut 34 and ro'- tating the pintle rod 3|, as by means of a screw driver applied to theV exposed screw driver slot 35 thereof, to the point where the valley point 42a will coincide with the selected closed position of the door.

This improved door hinge'assembly may be designed to permit swinging' movement of the door for a full or to' permit two-way swinging movement of the door by providing a-n inclined track section-42lrextendingr from each side of the valley point 42a. The door may alsof be maintained in out-swung; open position, or inswung open position, by providing a depression notch 42d in the cam track directly adjacent the crown point 42e thereof. Thus byfa selected shaping of the camk track 42, any desired door action may-beachieve'd.

Door hinge assemblies constructed in accordance with this invention present a number of important advantages over gravity' hinges as heretofore constructed and employed. This improved hinge assembly operates automatically and requires no elevating and loweringl movement of the door for its proper functioning. The door can beu made the full sizey of theV door opening, with the door sizes snuglyconformlng to the door frame sizes. w Since the hinge assembly is fully concealedr within the door,` the operating parts are protected from dust, dirt and the weather, do not require special finishing, and can -thus be made of Yless expensive materials. The same size and design of hinge assembly can be used for numerous different types and kinds of doors, thus making unnecessary special door hinge assemblies to accommodate various types of doors. Sinceeffective operation of this improved hinge assembly is independent of the type and kind of mounting bracket'employed, the door hinge brackets can be simplified and streamlined into numerous and various shapes, harmonizing with the architectural lines of the door and door frame. By the -use of these improved hinge assemblies, projecting hingev parts which gather dust and dirt may be avoided, and greater latitude permitted in the design of doors and door frames inV harmony with the most advanced architectural ideas.

While certain novel features of the invention have been disclosed herein, and are pointed out in the claims, it will be understood that various omissions, substitutions, and changes may be made by those skilled in the art without departing from the spirit of the invention.

What is claimed is:

l. An improved door hinge assembly including, an elongated pintle rod adapted to be fixed to an exterior hinge bracket and extending into the door body, means for swingably supporting the door body from said hinge bracket, a cam member presenting a cam track contained within the door body and fixed to said pintle rod, a member within the door body swingably mounted on said pintle rod Yand having a portion thereof radially spaced from said pintle rod and operative to exert swinging pressure against an interior part of the door body to swing the door, a cam roller connected to said swingable member and positioned for rolling engagement with the cam track of said cam member, and means within the door body for applying a camming load on said cam roller suiiicient to eiect swinging movement of the door to predetermined residence position.

2. An improved door hinge assembly including in combination, an elongated pintle rod adapted to be supported by an exterior hinge bracket and extending into the door body in alignment with the axis of swinging movement of the door, a thrust bearing centered on said pintle rod and supported from said hinge bracket to provide a support for the door, a cam member having a cam track fixed to said pintle rod, a radius block swingably mounted on said pintle rod, said radius block having a portion thereof extending laterally inwardly of the door body between the wall forming facesthereof and operative to exert swinging pressure against an interior part of the door body to swing the door, a cam roller arranged to have rolling engagement with the cam track of said cam member, said cam roller being rotatably supported from a lug section projecting from said radius block and in spaced relation to said cam track,and adjustable means within the door body for exerting predetermined pressure on said radius block to thereby apply a corresponding camming load on said camming roller` sufficient to automatically effect swinging movement of the door to a desired residence position. u

3. An improved door hinge assembly including in combination,anelogatedl pintle rod adapted to be supported by an exteriorhinge bracket and extending into the door body in Yalignment with the axis of swinging movement of the door, a thrust bearing centered on said pintle rod having a rotatable section inset Within the adjacent edge of the door body and a companion bearing section adapted to be supported from the hinge bracket to provide a support for the door, a cam member having a cam track fixed to said pintle rod, a radius block swingably mounted on said pintle rod, said radius block having a portion thereof extending laterally inwardly of the door body between the wall forming faces thereof and operative to exert swinging pressure against an interior part of the door body to swing the door, a cam roller arranged to have rolling engagement with the cam track of said cam member, said cam roller being rotatably supported from a lug sectionprojecting from said radius block and in spaced'relation to said cam track, and a compression spring for exerting predetermined pressure on said radius block to thereby apply a corresponding camming load on said camming roller sufficient to automatically effect swinging movement of the door to a desired residence position.

4. An improved door hinge assembly including, an exterior hinge bracket having a wing portion designed for attachment to a door frame forming member above the' floor line and an arm portion projecting from the wing portion into the door opening, an elongated pintle rod extending into the door body in alignment with the axis of swinging movement of the door, said pintle rod having means at one end thereof for adjustably securing saidpintle rod to the door supporting arm of said hinge bracket, means for swingably supporting the door body from said hinge bracket, a cam member presenting a cam track contained within the door body and fixed to said pintle rod, a device within the door body swingably mounted on said pintle rod and having means radially spaced from said pintle rod operative to exert swinging pressure against an interior part of the door body to swing the door, a cam roller connected to said swingable device and positioned for rollingflen'gagement with the cam track of said cam member, and means for exerting a predetermined pressure on said device to thereby apply a corresponding camming load on said cam roller sufficient to effect swinging movement of the door to predetermined residence position.

5. An improved door hinge assembly including, an exterior hinge bracket having a wing portion designed for attachment to a door frame forming member above the iioor line and an arm portion projecting from the wing portion into the door opening, anelongated pintle rod extending into the door body in alignment with the axis of swinging movement of the door, said pintle rod having means at one end thereof for adjustably securing said pintle rod to the door supporting arm of said bracket, a thrust bearing having a section fixed to said pintle rod and a rotatable section set within the adjacent edge of the door body and rotatably supported on said fixed section, a cam member within the door body fixed to said pintle rod and having a cam track presenting an inclined track section and a valley section, a radius member slidably and swingably mounted on said pintle rod and having means extending inwardly of the door body between the wall forming faces thereof operative to exert swingingv pressure against an interior part of the doorv body to swing the door, a cam roller having rolling engagement with `the ,camtrack of said cam member rotatably 'supported from said radius member in spacedgrelation to said cam track, andmeans for exerting a predetermined pressure on said radius member to thereby apply a corresponding camming load on said cam roller suflicient to eife'ct swinging movement of the door tov resideiice position; I

6. An improved door hinge assembly including, an exterior hinge brackethaving a wing portion designed for attachment to a door frame forming member above the floor line and an arm' por# tion projecting fromthe wing portion 'into the door opening', an elongatedrpintle'rod extending in'tothe door body in alignmentiwith the :axis of swingingA movement ofthe doorysaid pintle rod having one end thereof extending externally of the door to present an exposed end portion, means for adjustably securing said pintle rod to the door supporting arm of said bracket, means for rotatably supporting the door body from said hinge bracket, a cam member within the door body fixed to said pintle rod and having a cam track presenting an inclined track section and a valley section, a radius member slidably and swingably mounted on said pintle rod and having vmeans extending inwardly of the door body between the wall forming faces thereof operative to exert swinging pressure against an interior part of the door body to swing the door, a cam roller rotatably supported from said radius member and having rolling engagement with the cam track of said cam member, means for exerting a predetermined pressure on said radius member to thereby apply a corresponding camming an elongated pintle rod having an end portion.

adapted to be iixed to an exterior hinge bracket and a shank portion extending into the door body, a thrust bearing centered on said pintle rod and operative to rotatably support the door body from said hinge bracket, a cam member presenting a cam track contained within the door body and xed to said pintle rod, a radius arm slidably and swingably mounted on the shank portion of said pintle rod and contained within the door body, said radius arm having a portion radially spaced from said pintle rod and operative to exert pressure against an interior part of the door body to swing the door, a cam roller rotatably supported by said radius arm positioned for rolling engagement with the cam track of said cam member, and means within the door body for applying a camming load on said rcam roller sufficient to effect swinging movement of the door to predetermined residence position, said camming load means including a helical spring telescoped over the shank portion of the pintle rod and supported from said radius arm, and adjustable means associated with said shank portion for variably adjusting the camming load exerted by said helical spring.

8. An improved door hinge assembly including, an elongated pintle rod adapted to be fixed to an exterior hinge bracket and extending into the door body, means for swingably supporting the los' door body onsaid pintle rod, acamj member presenting av cam track contained/,within the' door body andv iixed-tofsaidpintle rod, a1-radius arm slidably landlswingably mounted on said pintle rod and contained withingthe `doorbeifinfsaiel radius arm .having a portion radially spaced from said pintlev rod and operative to exert pressurejagainst an interior part of-the door body te swing the door, a cam roller' rotatably supported byqsaid radius armpositioned fl rolling engagement with the cam track of said,carnrnember,-and vmeansV for exerting-a predetermined pressure on -said radius arm to thereby-apply a-corresponding eamming load on said' cam roller sufficient to effect swing ing movement ofthe doorto predetermined residence position. 'f 1 l Y 9. An improved door hinge assembly including, a normally stationary pintle rod having a projecting end portion adapted to be adjustably iixed to an exterior hinge bracket and a shank portion extending into the door body, a thrust bearing centered on said pintle rod and operative to swingably support the door body from said hinge bracket, a cam member presenting a cam track contained within the door body centered on and iixed to said pintle rod, a radius member slidably and swingably mounted on said pintle rod and contained within the door body, said radius member having means radially spaced from said pintle rod and operative to exert swinging pressure against an interior part of the door body to swing the door, a cam roller rotatably supported by said radius member positioned for rolling engagement with the cam track of said cam member, means for exerting a predetermined pressure on said radius arm to thereby apply a corresponding camming load on said cam roller suincient to eiect swinging movement of the door to residence position, and means associated with the end portion of said pintle rod whereby said pintle rod may be adjusted exteriorly of the door body to selectively orient said cam track y and accordingly selectively adjust the residence position of the mounted door.

10. An improved door hinge structure including, a pintle rod having an end portion adapted to be fixed to an exterior hinge bracket and a shank portion ertendin,CT into the door body, a bearing unit centered on said pintle rod for swingably supporting the door body from the hinge bracket, a cam member presenting a cam track contained within said door body and fixed to said pintle rod, a reciprocable member within the door body having a portion radially spaced from said pintle rod and operative to exert pressure against an interior part of the door to swing the door, means for guiding the reciprocable movement of said member in a direction generally parallel to said pintle rod, a cam roller rotatably supported by said reciprocable member within the door body and positioned for rolling engagement with the cam track of said cam member, and means within the door body for applying a camming load on said cam roller to effect swinging movement of the door to a predetermined' residence position.

11. An improved door hinge structure including, a pintle rod having an end portion adapted to be xed to an exterior hinge bracket and a shank portion extending into the door body, a bearing unit centered on said pintle rod for swingably 'supporting the door body from the hinge bracket, a cam member presenting a cam track contained Within the door body centered on and fixed to said pintle rod, a reciprocable 1 1 member within the door body having a portion radially spaced from said p intle rod and operative to exert pressure against an interior part o the door to swing the door, means for guiding the reciprocable movement of said member in a direction generally parallel to said pintle rod, a cam roller rotatably supported by said reciprocable member within the door body and positioned vfor rolling engagement with the cam track of said cam member, means within the door body for applying a camming load on said cam roller to effect swinging movement of the door to residence position, and Ameans associated with the end portion of said pintle rod whereby said pintle rod may be adjusted exterior of the door body to selectively orient said cam member and REFERENCES CITED The following references are of record in the le of this patent:

Y UNITED STATES PATENTS Number Name Date 373,837 Long Nov. 29, 1887 700,694 Marr May 20, 1902 708,214 Foster Sept. 2, 1902 1,056,171

Henry Mar. 18, 1913 

